Anyone, I repeat, ANYONE, who thinks we should use Tau instead of Pi is an imbecile. It isn’t a matter of tradition, or stubbornness. It has nothing to do with rewriting results, or reteaching anything whatsoever.
The most elegant formula in the history of mathematics would be ruined by it. Any argument (or number of arguments) lose to this one.
Tau is idiotic. If you like it, so are you.